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Mathematics, 18.12.2020 22:50 letsbestupidcx2314

A rain drop randomly drops on the keys of a piano, what is the probability that the drop landed on a black key? (Assume that the drop had to land on a key and did not land on two at the same time).

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A rain drop randomly drops on the keys of a piano, what is the probability that the drop landed on a...
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